Click on the “Orders” tab on the left side of the screen. Here you will be able to choose the scheduled order you want to cancel

Click on the order number and then click on “Other Actions”

It’s important to remember that you can ONLY cancel an order while its status is 'Scheduled'. If the order moves to the next status you won’t be able to cancel it, however you will be able to generate a partial or full order refund once the order is closed.